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Port (medical)
In medicine, a port (or portacath) is a small medical appliance that is installed beneath the skin. A catheter connects the port to a vein. Under the skin, the port has a septum through which drugs can be injected and blood samples can be drawn many times, usually with less discomfort for the patient than a more typical "needle stick".
Ports are used mostly to treat hematology and oncology patients. Ports were previously adapted for use in hemodialysis patients, but were found to be associated with increased rate of infections and are no longer available in the US.〔http://www.fda.gov/downloads/advisorycommittees/committeesmeetingmaterials/medicaldevices/medicaldevicesadvisorycommittee/gastroenterology-urologydevicespanel/ucm358369.pdf〕
The port is usually inserted in the upper chest (known as a "chest port"), just below the clavicle or collar bone, leaving the patient's hands free.
==Terminology==
The term portacath is a portmanteau of "portal" and "catheter". Port-a-Cath is a registered trade mark of Smiths Medical; others include Eco Port, Clip-a-Port, SmartPort, Microport, Bardport, PowerPort (power injectable), Passport, Infuse-a-Port, Medi-Port, and Bioflo. The terms totally implantable venous access system (TIVAS) and VAD (venous access device) are also used. Additionally, a portacath is the main form of a central venous access device, and is frequently referred to as such in the medical field.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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